POBCO Thermoplastic Idler Pulleys Thermoplastic Idler PulleysRound, Flat, V-Belt and Cable Molded (Glass Reinforced Nylon) Pulleys offer: Lower Coeffecient of Friction Resists oils, solvents & many acids; corrosion resistant ABEC-1 sealed bearings, with sintered metal hubs Standard Bore adapters of 38" & 12 more...